Dreamcolor Calibration

[Russell Lasson]

So the setup we’re going for with this is HDSDI – HDP2 – DreamColor. With the calibration software I couldn’t think of anyway to set it up so it would calibrate from the HDSDI path. It’s really not as important for what I’m doing either as I’m trying to set up the monitor as full color range (not DCI or Rec709) and then let LUTs from CineSpace do the transformation to whatever color space I need. I can apply these LUTs right out of our color system or using a LUT box like Davio or the HDLink Pro.

So the monitor get’s stuck in the USB error loop when it’s connected over DVI to HDMI. When I connect it over DVI to DVI, the error goes away. I’ve tried calibrating it several times, but the white balance still looks a little green and our colorimeter reads it as a little greener than it should. It also looked a little too green out of the box with factory settings too.

Color management can really bite sometimes!

Russ

Russell Lasson
Colorist/Digital Cinema Specialist
Color Mill
Salt Lake City, UT
http://www.colormill.net

[Paul Jay]

I had exactly your USB connecting problem. The calibrating software clearly says No Snow Leopard support.

But it does work great if you boot in 32 bit Snow Leopard. Hold 23 during boot.

After calibrating you can boot in 64 bit again.

[Paul Jay]

BOOT in 32 BIT Snowleopard or it won’t work.

[Jeremy Garchow]

v1.1.0.1 has 64 bit support:

https://www.xrite.com/product_overview.aspx?ID=1144&Action=support&SoftwareID=1037

Be sure to read the “known issues”.

Jeremy

[Carlos f. Rossini]

Hi,
I am having the same little green cast in my Dreamcolor, have you figured this out after a year?
thanks in advance for your help.

C.F.Rossini

[Chad Smith]

I have gotten my dreamcolor to calibrate a number of times. Then this morning it was time to calibrate again so I hooked up the DVI to my mac so I could calibrate and the monitor is black. If I go into system prefs the mac is seeing the monitor but I don’t see the desktop. Tried switching the inputs to the other DVI and HDMI then back but nothing. Tried switching the power switch on the back and my mac screen goes blue for a second and comes back. However the Dreamcolor does not show the desktop. If I feed it HD video from the BMD card through the HDP2 via HDMI I can see the image. Any thoughts?

Also to make sure I am doing proper calibration steps. For working in HD I set the Dreamcolor to REC 709 color space. Then calibrate the monitor with the HP puck. Then feed it video to the HDMI input in order to get 10bit and set the AJA HDP2 to the SMPTE color range.

Thanks!

[Jeremy Garchow]

[Chad Smith] ” If I go into system prefs the mac is seeing the monitor but I don’t see the desktop. “

What happens? Does the monitor show no input and turn itself off?

Have you changed the refresh rate?

[Chad Smith]

The monitor stays on however I do not see the mac desktop. Have not changed the refresh rate.

Thanks

[Jeremy Garchow]

[Chad Smith] “The monitor stays on however I do not see the mac desktop. Have not changed the refresh rate.”

Try changing the refresh rate in the system prefs > Display. If the monitor remains on, it’s seeing something.

[Chad Smith]

OK now its working. Did not change anything. Ghost in the machine!

Is that the proper workflow for REC 709 calibration I mentioned above ?

Thanks so much!